Question: What is the position of Alain Poher held on 1974-4-3?
Paraphrase: Of role did Alain Poher take charge on 1974-4-23?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q12950 p:P39 ?s . ?s ps:P39 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1974')) }